Palladium(0)-Catalyzed Suzuki−Miyaura Cross-Coupling Reactions of Potassium Aryl- and Heteroaryltrifluoroborates with Alkenyl Bromides
作者:Gary A. Molander、Tiziano Fumagalli
DOI:10.1021/jo0608366
日期:2006.7.1
Efficient palladium(0)-catalyzed Suzuki−Miyaura cross-couplings are described. The reactions involving potassium aryl- and heteroaryltrifluoroborates with alkenyl bromides can generally be carried out using ≤2 mol % of palladium catalyst and 3 equiv of base in toluene/H2O. When stereodefined alkenyl bromides are employed, the resulting styrene derivatives are accessed stereospecifically. A variety
描述了有效的钯(0)催化的Suzuki-Miyaura交叉偶联。涉及芳基三氟硼酸钾和杂芳基三氟硼酸钾与烯基溴化物的反应通常可以使用≤2 mol%的钯催化剂和3当量的碱在甲苯/ H 2 O中进行。当使用立体定义的烯基溴化物时,立体定向地获得所得的苯乙烯衍生物。两种偶联伙伴均容许多种官能团。